LAKE FOREST, California (CNN) -- Speaking to a group of evangelical Christians, Sen. Barack Obama said Saturday that his greatest moral failure -- and the country's -- has been selfishness, but his opponent, Sen. John McCain, cited his failed first marriage.

Lynn v. Sekulow is an ongoing debate blog--a blogalogue--about how big (or little) a role faith and religion should play in American politics and government, featuring the two leading voices of the church/state battle: American Center for Law & Justice Chief Counsel Jay Sekulow and Americans United for Separation of Church and State Executive Director Rev. Barry W. Lynn.

Take an incisive look at Buddhism's past, present, and future.

Faced with the spectacle of the cruelties perpetrated in the name of faith, Voltaire famously cried

The God Delusion by the atheist writer Richard Dawkins, is remarkable in the first place for having achieved some sort of record by selling over a million copies. But what is much more remarkable than that economic achievement is that the contents

Terry Mattingly, the religion journalist, inquires in to the definition of the New Age

Once a Lutheran altar boy, University of Minnesota biology professor Morris P.Z. Myers has fallen from grace -- at least in the eyes of some Catholics and the conservative Catholic League. One of the more prominent atheist voices in America, Myers wrote a blog post on the furor sparked by a Florida college student who smuggled a communion wafer out of mass and, once found out, received threats of harm and death. Catholics believe the bread, once blessed by a priest, has been transformed into the substance of Christ's body and blood. Myers doesn't buy it. He wrote that if readers of his blog send him a consecrated host, "I'll show you sacrilege, gladly, and with much fanfare."

Barack Obama talked to NEWSWEEK's Lisa Miller and Richard Wolffe about how faith plays into his everyday life.

OGA, Japan

Religion, or at least religious inquiry, is something that nearly all humans share in common. In all corners of the world and in all eras of history, people have wondered about the meaning of life, how to make the best of it, what happens afterwards, and if there is anyone or anything "out there."